When making this special treat I frequent Save a Lot and Aldi. Canned milk and semi sweet chips can be found for a little over a dollar. Some stores offer their own variety of Bits 'O Brickle (Toffee Bits) at reduced rates, too.
2 1/3 cups all purpose flour
2/3 cup brown sugar
1 1/2 sticks of butter or margarine
1 egg, slightly beaten
2 cups semi sweet chocolate chips
1 cup coarsely chopped nuts (optional)
1 can 14 oz. sweetened condensed milk
1 1/3 cups Heath Bits 'O Brickle, Toffee Bits, Divided
Heat oven to 350 and grease a 13 x 9 inch pan. Combine flour and sugar in bowl and cut in butter until mixture resembles coarse crumbs. Add egg and mix well. Stir in 1 1/2 chocolate chips and nuts if using. Set aside 1 1/2
cups of this mixture.
Press remaining crumb mixture into bottom of greased pan. Bake 10 minutes. Pour sweetened condensed milk evenly over top. Set aside 1/4 cup toffee bits. Sprinkle reserved crumb mixture over milk. Add remaining 1/2 cup chocolate chips on top. Bake 25 - 30 minutes or until golden. Top with remaining toffee bits. Cool completely.